R help - Oct 2006 - problem about using list element in for cycle

for example
data <- read.csv("data.txt")
typeof(data)
[1] "list"
for (i in 1:nrow(data)){

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sorry, pressed "sent" by mistake.
for example
>data <- read.csv("data.txt")
>single
            V1      V2
1      YHR165C  CG8877
2      YJL130C CG18572
3      YDL171C  CG9674
4      YKR054C  CG7507
5      YDL140C  CG1554
6      YLR106C CG13185
7      YGL206C  CG9012
8      YNL262W  CG6768
9      YER172C  CG5931
>typeof(data)
[1] "list"
>for (i in 1:nrow(data)){
     cat(data[i,1]
   }

it'll not return things like "YHR165C" but number like 6,7,9..
is this a new feature of list? how to turn off it.
thanks

On 10/23/06, Hu Chen <chencheva@gmail.com> wrote:
>
> for example
> data <- read.csv("data.txt")
> typeof(data)
> [1] "list"
> for (i in 1:nrow(data)){
>
>
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